SU604705A1 - Pneumatic tyre assembling machine - Google Patents

Description

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The invention relates to tire assembling devices for assembling tires of pneumatic tires, for example bicycle or motorcycle tires, and can be used in the tire industry.

A device for assembling tires of pneumatic tires, comprising an assembly drum formed by radially expanding sectors, and a drive for radial unclamping of sectors are known.

The disadvantage of this device is that it is not equipped with a mechanism for turning the cord layers onto the wing.

Another device for assembling tires of pneumatic tires is known, having it been mounted on a drive shaft, an expanding drum assembled by radial-expansion sectors, a drive for radial unclamping sectors mounted on a drive shaft with the possibility of axial movement of sliders with a profile surface along it, mechanisms bead processing and drives.

Such a device has several drives, which complicates its design. The design of the side handling mechanisms is complex and unreliable in operation.

The purpose of the present invention is to improve the performance of the device and the use of the bat, its drive for radial

unclamping assembly drum and processing board.

For this, the described device is equipped with end-mounted and slide-mounted displacement on the sliders and discs with radial grooves and installed in radial grooves with the possibility of displacement by longitudinal beams rigidly connected to radial-expansion sectors and having external profile planes with which they interact with machining mechanisms sides, and the internal profile planes with which they interact with the profile surface of the sliders. The device is equipped with a gear and gears interacting with it, one of which is rigidly connected to one of the sliders, and the other is fixed to a rod mounted inside the drive shaft connected to the other slide.

FIG. 1 shows the device, a general view; in fig. 2 and 3 given the successive stages of the device.

The device consists of an expanding assembly drum mounted on the drive shaft, formed by radially expanding sectors 2 with -caps and under the side rings, a drive for radially unclamping sectors 2 in the form of axial displacement

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(Along it, sliders 3 and 4 with a profiled surface B. On sliders 3 and 4 are installed with the possibility of hauling Bratly Stupid movement along them end disks 5 and 6 with radial grooves c.

In the radial grooves, longitudinal beams 7 are mounted with the possibility of radial re-alignment, which are hard-wired to sectors 2 and have external profile planes r and B1 sockets | profile planes d.

With the help of planes d, beams 7 interact with the profile surface b of sliders 3 and 4.

The device is equipped with onboard machining mechanisms in the form of segments 8, hinged but fixed on radially movable guides 9 mounted on end disks 5 and 6.

The outer profile planes r interact with the guides 9.

The slider 3 is provided with an annular stop 10. A rod 11 is mounted at the inside of the drive shaft 1, which is connected with a slider 3 by means of a rod 12. The gear rail il3 is fixed to the shank 11, which interacts with gear gear 14, which in turn interacts with gear rack 15 fixed by means of dioke 16 on the slider 4.

The operation of the device is as follows.

A layer of trimmed cord 17 is applied to the surface of the sectors 2, a bracelet is formed on the drum, then the side rings 18 are applied. Under the action of the shaft, the rod 11 is moved to the right, the rod 12 is applied to the slider 3, and by means of the rail 13, the gear 14, the rail 15 and the disk 16 is on the slider 4. The slide 3 and 4 move towards each other and slide along the profile blocks of the beams 7, radially pushing them apart, increasing the diameter of the drum and fitting the side rings 18 into the grooves a of the sectors 2 (see Fig. 2) .

When further approaching the sliders 3 and 4, they slide along the straight section of the beams 7, therefore the diameter of the drum remains unchanged. The slider 3 ring stop 10, and the slider 4 disc 16 affect the end disks 5 and 6.

As a result, the guides 9, moving along the profile plane r of the beams 7,

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unclench segments 8 and push them into sectors 2 (see fig. 3). Torsion of the horde 17 edges on the side rings 18 occurs.

The device allows a single linear movement of the shtanga to carry out the sequential execution of two technological operations: landing the bead rings on the drum and turning the cord edges onto the bead rings, thereby increasing the productivity of the equipment and simplifying its design.

Claims (2)

1. A device for assembling tires of pneumatic women, comprising an expanding drum mounted on the drive shaft formed by radially expanding sectors, a drive for radial unclamping of the sectors mounted on drive shaft with the possibility of axial movement along it of sliders with a profile surface, bead processing mechanisms and drives, characterized in that, in order to improve the performance of the device, it is equipped with end disks mounted with the possibility of reciprocating movement on sliders with radial grooves and installed in radial grooves that can be moved by longitudinal beams, rigidly connected to radial-expanding sectors and having external profile planes with which they intersect act with the mechanisms of processing side, and the internal profile of the plane, which they interact with the profile surface of the sliders. 2. The device according to claim 1, characterized in that, in order to use a common drive for the radial expansion of the assembly the drum and bead processing, it is equipped with a toothed jaws and gears interacting with it, one of which is rigidly connected to one of the sliders, and the other is mounted on a shtange installed inside the drive shaft connected to the other slide. Sources - information taken into account in the examination 1. US Patent No. 2367831, cl. 156-415, publ. 1945. 2. USSR author's certificate No. 441769, cl. B 29H 17/14, 1970. / ° 3 g 9